<template>
  <div class="cart">
    <Header/>
    <div class="cart-info">
      <h3 class="cart-top">购物车结算 <span>共{{ jiesuan_data.length }}门课程</span></h3>
      <div class="cart-title">
        <el-row>
          <el-col :span="2">&nbsp;</el-col>
          <el-col :span="10">课程</el-col>
          <el-col :span="8">有效期</el-col>
          <el-col :span="4">价格</el-col>
        </el-row>
      </div>
      <div class="cart-item" v-for="(jiesuan_value,jiesuan_index) in jiesuan_data" :key="jiesuan_index">
        <el-row>
          <el-col :span="2" class="checkbox">&nbsp;&nbsp;</el-col>
          <el-col :span="10" class="course-info">
            <img :src="jiesuan_value.course_img" alt="">
            <span>{{ jiesuan_value.name }}</span>
          </el-col>
          <el-col :span="8"><span>{{ jiesuan_value.expire_text }}</span></el-col>
          <el-col :span="4" class="course-price">¥{{ jiesuan_value.real_price }}</el-col>
        </el-row>
      </div>

      <div class="discount">
        <div id="accordion">
          <div class="coupon-box">
            <div class="icon-box">
              <span class="select-coupon">使用优惠劵：</span>
              <a class="select-icon unselect" :class="use_coupon?'is_selected':''" @click="use_coupon=!use_coupon"><img
                class="sign is_show_select" src="../../static/image/12.png" alt=""></a>
              <span class="coupon-num">有{{ coupon_list.length }}张可用</span>
            </div>
            <p class="sum-price-wrap">商品总金额：<span class="sum-price">0.00元</span></p>
          </div>
          <div id="collapseOne" v-if="use_coupon">
            <ul class="coupon-list" v-if="coupon_list.length>0">
              <li class="coupon-item" @click="change_coupon_status(coupon_value.id,coupon_index)"
                  :class="coupon_status(coupon_value.id,coupon_index)"
                  v-for="(coupon_value,coupon_index) in coupon_list">
                <!-- active类值表示选中，disable类值表示禁用 -->
                <p class="coupon-name">{{ coupon_value.coupon.name }}</p>
                <p class="coupon-condition">满{{ coupon_value.coupon.condition }}元可以使用</p>
                <p class="coupon-time start_time">开始时间：{{ coupon_value.start_time.replace('T', ' ') }}</p>
                <p class="coupon-time end_time">过期时间：{{ coupon_value.end_time.replace('T', ' ') }}</p>
              </li>

            </ul>
            <div class="no-coupon" v-if="coupon_list.length<1">
              <span class="no-coupon-tips">暂无可用优惠券</span>
            </div>
          </div>
        </div>
        <div class="credit-box">
          <label class="my_el_check_box">
            <el-checkbox class="my_el_checkbox" v-model="use_credit"></el-checkbox>
          </label>
          <p class="discount-num1" v-if="!use_credit">使用我的贝里</p>
          <p class="discount-num2" v-else><span>总积分：{{ credit }}，已抵扣 ￥{{
              (credit_num / credit_to_money).toFixed(2)
            }}，本次花费
              <el-input-number v-model="credit_num" @change="handleChange" :min="0" :max="max_credit()"
                               label="描述文字"></el-input-number>
              积分</span></p>
        </div>
        <p class="sun-coupon-num">优惠券抵扣：<span>0.00元</span></p>
      </div>

        <div class="calc">
            <el-row class="pay-row">
              <el-col :span="4" class="pay-col"><span class="pay-text">支付方式：</span></el-col>
              <el-col :span="8">
                <span class="alipay" v-if="pay_type===0"><img src="../../static/image/alipay2.png" alt=""></span>
                <span class="alipay" v-else @click="pay_type=0" style="cursor:pointer;"><img src="../../static/image/alipay.png" alt=""></span>
                <span class="alipay wechat" v-if="pay_type===1"><img src="../../static/image/wechat2.png" alt=""></span>
                <span class="alipay wechat" v-else @click="pay_type=1" style="cursor:pointer;"><img src="../../static/image/wechat.png" alt=""></span>
              </el-col>
              <el-col :span="8" class="count">实付款： <span>¥{{t_price.toFixed(2)-this.credit_num/this.credit_to_money}}</span></el-col>
              <el-col :span="4" class="cart-pay"><span @click="payhander">去支付</span></el-col>
            </el-row>
        </div>
    </div>
    <Footer/>
  </div>
</template>

<script>
import Header from "./common/Header"
import Footer from "./common/Footer"

export default {
  name: "Jiesuan",
  data() {
    return {
      id: localStorage.id || sessionStorage.id,
      order_id: sessionStorage.order_id || null,
      jiesuan_data: [],
      total_price: 0,
      t_price: 0,  // 使用优惠券之后的价格
      // final_price:0,  // 使用优惠券之后的价格
      pay_type: 0,

      use_coupon: false,
      coupon_list: [],
      use_credit: false,
      select_coupon_id: 0,
      credit: 0,
      credit_to_money: 0,

      credit_num: 0,

    }
  },
  components: {
    Header,
    Footer,
  },
  created() {
    this.get_jiesuan_data();
    this.get_coupon_data();
    this.get_credit_data();

  },
    methods: {
      handleChange(val){
        if (val === undefined){
          this.credit_num = 0

        }else{
          // console.log(val);
          this.credit_num = val;
        }

      },

      // 获取最大积分上限
      max_credit(){
        let mc = this.t_price * this.credit_to_money;
        if (mc > this.credit){
          return parseInt(this.credit)
        }else {
          return parseInt(mc)
        }

      },

      get_credit_data(){
        this.credit = sessionStorage.credit || localStorage.credit
        this.credit_to_money = sessionStorage.credit_to_money || localStorage.credit_to_money
      },

      change_coupon_status(coupon_id,coupon_index){
        let data = this.coupon_list[coupon_index]
        let sale = data.coupon.sale; //
        // console.log(data);

        let condition = data.coupon.condition;
        let now = (new Date()) / 1000;

        let s_time = (new Date(data.start_time)) / 1000;
        let e_time = (new Date(data.end_time)) / 1000;
        if (now < s_time || now > e_time){
          return false
        }
        if (this.total_price < condition){
          return false
        }

        this.t_price = this.total_price;
        this.select_coupon_id=coupon_id;
        let a = sale[0];
        let n = parseFloat(sale.substr(1));
        if (a === '-'){
          this.t_price -= n;
        }else {
          this.t_price *= n;
        }

      },

      coupon_status(coupon_id,coupon_index){
        let data = this.coupon_list[coupon_index]
        // console.log(data);
        let condition = data.coupon.condition;
        let now = (new Date()) / 1000;

        let s_time = (new Date(data.start_time)) / 1000;
        let e_time = (new Date(data.end_time)) / 1000;
        if (now < s_time || now > e_time){
          return 'disable'
        }
        if (this.total_price < condition){
          return 'disable'
        }

        if (this.select_coupon_id === coupon_id){
          return 'active';
        }

        return ''

      },

      get_coupon_data(){
        let token = sessionStorage.token || localStorage.token;
        this.$axios.get(`${this.$settings.host}/coupon/list/`,{
          headers:{
            'authorization': `jwt ${token}`,
          }
        })
        .then((res)=>{
          this.coupon_list = res.data;

        }).catch((error)=>{

        })

      },


      get_jiesuan_data(){
        let token = sessionStorage.token || localStorage.token;
        this.$axios.get(`${this.$settings.host}/cart/jiesuan/`,{
          headers:{
            'authorization': `jwt ${token}`,
          }
        })
        .then((res)=>{
          // res.data --- {'jiesuan_data': [], total_price:总价}
          this.jiesuan_data = res.data.jiesuan_data;
          this.total_price = res.data.total_price;
          this.t_price = res.data.total_price;


        })

      },



      payhander(){
        let token = sessionStorage.token || localStorage.token;
        this.$axios.post(`${this.$settings.host}/order/list/`,{
          pay_type:this.pay_type,
          credit:this.credit_num,
          coupon:this.select_coupon_id,
        },{
          headers:{
            'authorization': `jwt ${token}`,
          }
        }).then((res)=>{

          let order_number = res.data.order_number

          this.$message.success('订单生成成功！马上跳转支付页面！');
          // 跳转到支付宝支付页面
          //1.请求后台获取支付宝的支付网子
          this.$axios.get(`${this.$settings.host}/payment/list/?order_number=${order_number}`,{
            headers:{
              'authorization': `jwt ${token}`,
            }
          }).then((res)=>{
            location.href = res.data.url;
          }).catch((error)=>{

          })

          //2.请求支付宝的网址获取支付页面


        }).catch((error)=>{

        })
      }
    }
}
</script>

<style scoped>

.coupon-box {
  text-align: left;
  padding-bottom: 22px;
  padding-left: 30px;
  border-bottom: 1px solid #e8e8e8;
}

.coupon-box::after {
  content: "";
  display: block;
  clear: both;
}

.icon-box {
  float: left;
}

.icon-box .select-coupon {
  float: left;
  color: #666;
  font-size: 16px;
}

.icon-box::after {
  content: "";
  clear: both;
  display: block;
}

.select-icon {
  width: 20px;
  height: 20px;
  float: left;
}

.select-icon img {
  max-height: 100%;
  max-width: 100%;
  margin-top: 2px;
  transform: rotate(-90deg);
  transition: transform .5s;
}

.is_show_select {
  transform: rotate(0deg) !important;
}

.coupon-num {
  height: 22px;
  line-height: 22px;
  padding: 0 5px;
  text-align: center;
  font-size: 12px;
  float: left;
  color: #fff;
  letter-spacing: .27px;
  background: #fa6240;
  border-radius: 2px;
  margin-left: 20px;
}

.sum-price-wrap {
  float: right;
  font-size: 16px;
  color: #4a4a4a;
  margin-right: 45px;
}

.sum-price-wrap .sum-price {
  font-size: 18px;
  color: #fa6240;
}

.no-coupon {
  text-align: center;
  width: 100%;
  padding: 50px 0px;
  align-items: center;
  justify-content: center; /* 文本两端对其 */
  border-bottom: 1px solid rgb(232, 232, 232);
}

.no-coupon-tips {
  font-size: 16px;
  color: #9b9b9b;
}

.credit-box {
  height: 30px;
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: flex-end
}

.my_el_check_box {
  position: relative;
}

.my_el_checkbox {
  margin-right: 10px;
  width: 16px;
  height: 16px;
}

.discount {
  overflow: hidden;
}

.discount-num1 {
  color: #9b9b9b;
  font-size: 16px;
  margin-right: 45px;
}

.discount-num2 {
  margin-right: 45px;
  font-size: 16px;
  color: #4a4a4a;
}

.sun-coupon-num {
  margin-right: 45px;
  margin-bottom: 43px;
  margin-top: 40px;
  font-size: 16px;
  color: #4a4a4a;
  display: inline-block;
  float: right;
}

.sun-coupon-num span {
  font-size: 18px;
  color: #fa6240;
}

.coupon-list {
  margin: 20px 0;
}

.coupon-list::after {
  display: block;
  content: "";
  clear: both;
}

.coupon-item {
  float: left;
  margin: 15px 8px;
  width: 180px;
  height: 100px;
  padding: 5px;
  background-color: #fa3030;
  cursor: pointer;
}

.coupon-list .active {
  background-color: #fa9000;
}

.coupon-list .disable {
  cursor: not-allowed;
  background-color: #fa6060;
}

.coupon-condition {
  font-size: 12px;
  text-align: center;
  color: #fff;
}

.coupon-name {
  color: #fff;
  font-size: 24px;
  text-align: center;
}

.coupon-time {
  text-align: left;
  color: #fff;
  font-size: 12px;
}

.unselect {
  margin-left: 0px;
  transform: rotate(-90deg);
}

.is_selected {
  transform: rotate(-1turn) !important;
}

.coupon-item p {
  margin: 0;
  padding: 0;
}

.cart {
  margin-top: 80px;
}

.cart-info {
  overflow: hidden;
  width: 1200px;
  margin: auto;
}

.cart-top {
  font-size: 18px;
  color: #666;
  margin: 25px 0;
  font-weight: normal;
}

.cart-top span {
  font-size: 12px;
  color: #d0d0d0;
  display: inline-block;
}

.cart-title {
  background: #F7F7F7;
  height: 70px;
}

.calc {
  margin-top: 25px;
  margin-bottom: 40px;
}

.calc .count {
  text-align: right;
  margin-right: 10px;
  vertical-align: middle;
}

.calc .count span {
  font-size: 36px;
  color: #333;
}

.calc .cart-pay {
  margin-top: 5px;
  width: 110px;
  height: 38px;
  outline: none;
  border: none;
  color: #fff;
  line-height: 38px;
  background: #ffc210;
  border-radius: 4px;
  font-size: 16px;
  text-align: center;
  cursor: pointer;
}

.cart-item {
  height: 120px;
  line-height: 120px;
  margin-bottom: 30px;
}

.course-info img {
  width: 175px;
  height: 115px;
  margin-right: 35px;
  vertical-align: middle;
}

.alipay {
  display: inline-block;
  height: 48px;
}

.alipay img {
  height: 100%;
  width: auto;
}

.pay-text {
  display: block;
  text-align: right;
  height: 100%;
  line-height: 100%;
  vertical-align: middle;
  margin-top: 20px;
}
</style>
